<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Selector Invalidation: :has() with nesting parent containing :hover</title>
<link rel="help" href="https://drafts.csswg.org/selectors/#relational">
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<script src="../../../resources/testdriver.js"></script>
<script src="../../../resources/testdriver-actions.js"></script>
<script src="../../../resources/testdriver-vendor.js"></script>
<style>
  dd, dt { background: white; }
  dd:hover {
    dt:has(~ &) { background: lime; }
  }
</style>
<dt id=dt1>#dt1</dt>
<dd id=dd1>#dd1, Hover me, the DT above should go lime</dd>
<dt id=dt2>#dt2</dt>
<dd id=dd2>#dd2, Hover me, both DTs above should go lime</dd>
<script>
  const white = 'rgb(255, 255, 255)';
  const lime = 'rgb(0, 255, 0)';

  function bg_color(element, color, message) {
    assert_equals(getComputedStyle(element)['background-color'], color, message);
  }

  promise_test(async () => {
    bg_color(dt1, white, "#dt1 initially white");
    bg_color(dd1, white, "#dd1 initially white");
    bg_color(dt2, white, "#dt2 initially white");
    bg_color(dd2, white, "#dd2 initially white");

    await new test_driver.Actions().pointerMove(0, 0, {origin: dd1}).send();

    bg_color(dt1, lime, "#dt1 should go lime when hover #dd1");
    bg_color(dd1, white, "#dd1 doesn't change when hover #dd1");
    bg_color(dt2, white, "#dt2 doesn't change when hover #dd1");
    bg_color(dd2, white, "#dd2 doesn't change when hover #dd1");

    await new test_driver.Actions().pointerMove(0, 0, {origin: dt1}).send();

    bg_color(dt1, white, "#dt1 should go white when hover #dt2");
    bg_color(dd1, white, "#dd1 doesn't change when hover #dt2");
    bg_color(dt2, white, "#dt2 doesn't change when hover #dt2");
    bg_color(dd2, white, "#dd2 doesn't change when hover #dt2");

    await new test_driver.Actions().pointerMove(0, 0, {origin: dd2}).send();

    bg_color(dt1, lime, "#dt1 should go lime when hover #dd2");
    bg_color(dd1, white, "#dd1 doesn't change when hover #dd2");
    bg_color(dt2, lime, "#dt2 should go lime when hover #dd2");
    bg_color(dd2, white, "#dd2 doesn't change when hover #dd2");
  });
</script>